Wrench adapter



FIG. 1 is a top right side perspective view of a wrench adapter embodying my design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image thereof;

FIG. 4 is a front elevational view thereof; and,

FIG. 5 is a bottom plan view thereof. 

The ornamental design for a wrench adapter, as shown and described. 